Speaker basket



FIG. 1 is a front perspective view of a speaker basket;

FIG. 2 is a front elevation view of the speaker basket; a rear elevation view, a left side elevation view, and a right side elevation view all being identical images thereof;

FIG. 3 is a top plan view of the speaker basket; and,

FIG. 4 is a bottom plan view of the speaker basket.

The broken lines shown in the drawings illustrate portions of the speaker basket that form no part of the claimed design. 

CLAIM The ornamental design for a speaker basket, as shown and described. 